252317287 has 2 divisors, whose sum is σ = 252317288. Its totient is φ = 252317286.

The previous prime is 252317279. The next prime is 252317297. The reversal of 252317287 is 782713252.

252317287 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 252317287 - 2³ = 252317279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (252317227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126158643 + 126158644.

It is an arithmetic number, because the mean of its divisors is an integer number (126158644).

Almost surely, 2^252317287 is an apocalyptic number.

252317287 is a deficient number, since it is larger than the sum of its proper divisors (1).

252317287 is an equidigital number, since it uses as much as digits as its factorization.

252317287 is an evil number, because the sum of its binary digits is even.

The product of its digits is 47040, while the sum is 37.

The square root of 252317287 is about 15884.4983238376. The cubic root of 252317287 is about 631.9009410185.

The spelling of 252317287 in words is "two hundred fifty-two million, three hundred seventeen thousand, two hundred eighty-seven".